In-app is the only way to enjoy it

It seems just a bit too difficult for me, as the only way to progress decently is by in-app purchases. Or maybe I am not able to play it right. It is a bit repetitive: missions lasts one minute and the next one is pretty much the same as the previous ones with some enemy in different places. It can be fun for a while, there are some funny jokes and humor in the dialogs.

Marco81bs about Gemini Strike: Space Shooter, v1.0.9